Cushion



l(No Model.)

CUSHIGN., PAD, &c.

N0.59o,328. -Patentdsept.21,.1a97.

LU/ 19e/dye; In @ador geo A i M .WW @f'm zen of the United-estates,

' remove the .material for-the purpose of reno- {Fain/ZZ wh'or vzit 'rmtyeorticelrrt: Beit knownthat-I, GEORGE MLLER, acid,v

Vwhich the following is a specification, refery after release from the Acushion or pad is intended.

UNITED S11/HES ,Y

Y GEORGE MULLER, oF MoUNTvERNoN, NEw YoRir.

srncirrcnrrorr forming pm of' ratten Patent-No., 590,328, .data Lseptember ai, 1897.5 -I l Application llled April 21,1897. y

residing inMount Vernon, county of tchester, State of New York, have invented certain new and useful Improvements inCushions, Pads, &c., of

ence being had to the accompanying drawings, forming a part hereof.

Cushions or pads for various purposes are commonly composed of 'masses of material of various kinds, all of which 'are preferably somewhat resilient, so that they shall not become compacted and hard in use, but shall return approximately to their normal condition pressure to which they have been subjected. Itis, however, the fact that of all the materials which are available for use in .cushions or pads-such 'as hair, wool, cotton fiber, sponge, felt,.and even rubberlose their natural resilience after continued use andexhibit a tendency to become more or less compacted and hard. Under many conditions of use the material employed would not require to be renewed for very long periods of time but for this tendencyto become compacted, and in fact it-is often possible by removal and renovation or picking apart and lightening up of the material to restore it substantially to its original condition. In some cases, however, it is not practicable to vation. I have sought to provide means whereby such a feltedor compacted material` shall be practically self-renovating while in use and shall maintain itself in its natural and original condition of resilience, thereby prolonging vthe efticiency'of the cushion or pad and obviating the necessity for the re moval and renovation of the material of which' itis composed. To thisend I incorporate with or embed in the felted or compacted cushioningmaterialspiralwiresprings,screw ing them into the feltedmass and varying their number and arrangement and form according to the particular use for which the In the accompanying drawings, wherein I have illustrated an embodiment of my inven serilutsaisz. cromati tion, Figure lisa view in side elevati-on of la' my invention is applied;` Fig. 2-is a side viewofone'of the springs removed from the cus h' ion or pad; and Fig. 3,is a view similar vto Fig. 1, showing a preferred arrangement of the cushioning material for some purposes,

the springs being indicated in dotted lines in both Figs. 1 and 3. v T he cushioningv material to which my imf provements are specially applicable is a practically homogeneous felted or compacted mass' of fiber, such as ings. I incorporate with or embed in the mass of cushioning material, -by in number and relative arrangement and character,

more spiral springs, suchas are indicated at -B in the drawings, such springs when sharpcned or pointed being easily inserted and thoroughly effective in accomplishing their in- 'tended ioning release from pressure by lightening it up throughout its mass and stretching and separating the bers or parts of the mass. The spiral wire springs B are'ea'sily incorporated' with the massof cushioning material by purpose, namely: to restore the cushscrewing them into the saine. In some casesthere may be a tendency on the part of plain ioning material, and in order to prevent such action I bend one 'or both ends of the wire spiral at an angle, as shown at b in Fig. 2', so

that the bent-'pover end shall engage the vcushprevent the screwing outioning material. and

Furthermore, s ince the ward ofthe spiral. bending of the wire according to the particular use forwhich the cushion or pad is intended, one orindicated at A in the drawscrewing them inA material to its original condition after' necessarily leaves one` A end lor. the-otherof the spiral at or near'the surface of the mass of cushioning material I may apply'to the surface of the cushioning material where the wires are exposed a thin layer of felt or any other suitable cover, as

indicated at A' in Fig. 3.

It will be readilyapparent that the actionof the spring in constantly lightening up the Y mass of felted or compacted brous material after it has been subjected' `to pressure and 8o wire spirals to work ont of the mass of cus'h- .1

released oisets completely the tendency ofA wire springs screwed therein, the ends of said ro such material to become matted and hard in springs being bent to prevent the withdrawal long-continued use. of the springs.

I claim as my invention-4 This specification signed and witnessed this l. Apracticallyhomogeneous mass of felted. 17th day of April, A. D. 1897. or compacted fibrous material having spiral GEORGE MULLER. wire springs screwed therein. In presence of-- 2. Apracticallyhomogeneous massoifelted l W. B. GREELEY,

orcompacted fibrous material having spiral F. M. EGGLESTON; 

